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COMPARISON OF FOUR-, SIX-, AND EIGHT-bp CUTS IN CALF THYMUS DNA
Students use this laboratory exercise, restriction enzymes to recognize a four-, six-, and eight-nucleotide sequence. Assuming that the four component nucleotides (A, C, T, G) are distributed randomly within a DNA molecule, then any...
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Comparison of Four-, Six-, And Eight-bp Cuts in Calf Thymus Dna
Students investigate the use of restriction enzymes to recognize a four-, six-, and eight-nucleotide sequence. They utilize restrictive endonucleases to cut Thymus DNA and compare results by viewing the DNA fragments on Agarose Gel...
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Dinosaur and DNA Days
Biology stars extract DNA samples from beef thymus and then examine its properties. They use enzymes to digest the DNA samples, and then use electrophoresis to separate fragments. Finally, they discuss methods and principles of...
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Fighting Back!
Fifth graders inspect the basic functions of the immune system and determine how viruses and bacteria invade the immune system. They also explore what happens to the immune system in outer space.
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Anatomical Position & Directional Terms
Simple lists of anatomical terms fill the slides in this collection. It begins by explaining the general anatomic position and then goes into directional, body plane, and body cavity terms. The separate regions are categorized as head,...
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Obesity
High schoolers examine how hormones affect different tissues. In groups, they make their own hormone-receptor model and identify the characteristics of tissues that respond to the different hormones. To end the instructional activity,...
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TE Lesson: Fighting Back!
Students examine the roles of the immune system in keeping the body healthy. They see how engineers contribute to this process by creating antibiotics, and vaccinations. They discuss how an astronauts' immune system may be suppressed...
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Blood and Lymph System
In this health learning exercise, learners look up the terms found in the word search based upon the subject of blood and lymphatic system.
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Defense Against Infectious Diseases
In this infectious disease defense worksheet, students will review the immune system including acquired, antibody, and cellular immunity. Students will then compare passive and active immunity to infectious diseases. This worksheet has...
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Homology: Where Does The Evidence Lead
Students are introduced to the topic of homology. In groups, they read a case study and compare different drawings of early vertebrate emryos. They work together to answer discussion questions and label the various parts of each embryo.
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Endocrine System
In this endocrine system worksheet, students match the correct gland found in the endocrine system to its hormone and target cell(s). They also describe the actions of each gland and hormone combined together.